---
title: TensorFlow 1.x + Keras
tags: AI/TF-Keras
---
# TensorFlow 1.x + Keras
By 蓉爸
Created: 2019-10-24
Revised: 2022-12-11


---
## 環境：
- Anaconda: 2019-10 版
- Python: 3.7.4
- TensorFlow: 1.14.0
- Keras: 2.3.1

---

## 狀況:
在執行以下程式碼時，

show_train_history(train_history,'acc','val_acc')

發生錯誤：

KeyError                                  Traceback (most recent call last)
<ipython-input-15-b94c5e09c9c0> in <module>
----> 1 show_train_history(train_history,'acc','val_acc')
      2 #show_train_history(train_history,'accuracy','loss')

<ipython-input-14-11fefc73ba88> in show_train_history(train_history, train, validation)
      1 import matplotlib.pyplot as plt
      2 def show_train_history(train_history,train,validation):
----> 3     plt.plot(train_history.history[train])
      4     plt.plot(train_history.history[val_acc])
      5     plt.title('Train History')

KeyError: 'acc'

---

## 解法:

變更數入參數：
acc --> accuracy
val_acc --> loss

show_train_history(train_history,'accuracy','loss')

就能跑出正確結果：

Ref:
- Convolutional Neural Net-Keras-val_acc Keyerror 'acc'
https://stackoverflow.com/questions/42689066/convolutional-neural-net-keras-val-acc-keyerror-acc